08459: sraider: [possible] Set Coin 1 & 2 to Free Play causes sound and graphical glitches.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08459	DIP/Input	Minor	Always	Oct 21, 2022, 09:26	Oct 23, 2022, 17:25

Tester	Draugr	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows 10/11 (64-bit)
Status [?]	Confirmed			Driver	universal/sraider.cpp
Version	0.248	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	08459: sraider: [possible] Set Coin 1 & 2 to Free Play causes sound and graphical glitches.
Description	In the DIP switch settings you can select Coin A and Coin B = FREE PLAY. If you do this when the game starts player 1 has no sound except when blown up and the blue grid is missing. Upon death when player 1's second ship starts, the sound and graphics are functioning properly. While this can be an issue, it is more of a slight inconvenience as there is a work around. In DIP Switch settings in MAME set Coin A: FREE PLAY and Coin B: 1 Coin / 1 Credit. If you do this the game seems to work fine. Only when both are set to FREE PLAY does the bug happen.
Steps To Reproduce	Start game. Go into DIP Switches Set Coin A: FREE PLAY Set Coin B: FREE PLAY Start a 1 player or 2 player game. At the very start player 1 has no sound or background graphics. After the 1st death, player 1 works fine.
Additional Information
Github Commit

Flags	Possible
Regression Version
Affected Sets / Systems	sraider

Attached Files	sraider - settings.jpg (217,189 bytes) Oct 23, 2022, 01:43 Uploaded by Draugr
Attached Files	sraider - missing blue grid 2.jpg (70,577 bytes) Oct 23, 2022, 01:43 Uploaded by Draugr

No.20653 Haze Senior Tester Oct 21, 2022, 09:54 edited on: Oct 22, 2022, 14:50	bugs like this are almost certainly issues in the original game as setting both coins to freeplay is basically redundant, some games tie debug / development features to such a setting, what you're seeing could be a leftover of that from when the game was being developed. many games were simply never properly tested in freeplay when being developed also, you see this a lot now so many arcades / shows operate the 'pay to enter, all machines are on freeplay' models.
No.20659 Draugr Tester Oct 23, 2022, 01:45	Added a few jpg images that show the issue. @Haze thanks for the info. You are probably correct in your thoughts. At least the game plays fine when setting only Coin A to Free Play. :)
No.20663 Tafoid Administrator Oct 23, 2022, 17:25	Confirmed pending possible original PCB observation